So does Happy World take place after Happy Zone or maybe in an alternate universe in which you never helped the people from Happy Zone?Since Purple says he/she is suicidal in Happy Zone and Purple is dead in Happy World, does Purple never find his frogs corpse and proceeds to commit suicide? Same for the Skinless Woman: You find her skin in Happy Zone but she is still "skinless" in Happy World. And finally the blue guy is still blue in Happy World and there is no pink guy so is this the same blue guy?

Thanks! I saved Skinless Woman and Purple and then the DDLC music came on and it all became clear XD Is the Skinless Woman Monica? And is Purple Sayori? And Red could be Yuri, because death by stabbage or Natsuki because of anger( although Natsuki isn't that psycho kind of angry, she ist waifu) and so Blue would be Natsuki then. Was this intentional or am I just wrong? Either way it's great!!! But does saving certain ghosts change the blue machines response?